ASROCK P55M Pro Manual página 14

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2.3 Installation of Memory Modules (DIMM)

This motherboard provides four 240-pin DDR3 (Double Data Rate 3) DIMM slots,

and supports Dual Channel Memory Technology. For dual channel configuration,

you always need to install identical (the same brand, speed, size and chip-

type) DDR3 DIMM pair in the slots of the same color. In other words, you have to

install identical DDR3 DIMM pair in Dual Channel (DDR3_A1 and DDR3_B1;

white slots; see p.2 No.7), so that Dual Channel Memory Technology can be

activated. This motherboard also allows you to install four DDR3 DIMMs for dual

channel configuration, and please install identical DDR3 DIMMs in all four slots.

You may refer to the Dual Channel Memory Configuration Table below.

Dual Channel Memory Configurations

DDR3_A2

(Blue Slot)

(1)

(2)*

Populated

For the configuration (2), please install identical DDR3 DIMMs in all four

slots.

If you want to install two memory modules, for optimal compatibility

and reliability, it is recommended to install them in the slots of the

same color. In other words, install them either in the set of white slots

(DDR3_A1 and DDR3_B1).

If only one memory module or three memory modules are installed

in the DDR3 DIMM slots on this motherboard, it is unable to activate

the Dual Channel Memory Technology.

It is not allowed to install a DDR or DDR2 memory module into

DDR3 slot;otherwise, this motherboard and DIMM may be damaged.

Please install the memory module into the white slot (DDR3_B1) for

the first priority.

1 4

DDR3_A1

DDR3_B2

(White Slot)

(Blue Slot)

Populated

ASRock P55M Pro Motherboard

DDR3_B1

(White Slot)

Populated